Street-car motor



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L. 0-. PARKER.

STREET OAR MOTOR.

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STREET GAR MOTOR.

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L. G. PARKER.

STREET UAR MOTOR.

No. 267,922 Patented Nov. 21,1882.

, UNITED STATES PATENT OFFICE.

LEWIS G. PARKER, OF ROBINSON, KANSAS.

STREET-CAR MOTOR.

SPECIFICATION forming part of Letters Patent No. 267,922, dated November 21, 1882. Application filed April 27, 1882. (No model.)

To all whom it may concern:

Be it known that I, LEWIS O. PARKER, a citizen of the United States, residing at Robinson, in the county of Brown and State of Kansas, have invented certain new and useful Improvements in Street-Oar Motors, of which the following is a specification, reference being bad therein to the accompanying drawings.

My invention relates to an improvement in street-car motors; and it consists in the peculiar combination and arrangement of devices whereby the car can be stopped and started, and whereby the motion of the car can be accelerated or slowed at will, the said devices being adapted to be actuated by either an electric, steam, gas, compressed-air, or other engine that may be preferred, all to be more fully set forth hereinafter? In the accompanying drawings, Figure l is a diagram illustrating a top plan of my invention with the running-gear of a car. Fig.2 is a side elevation. Fig. 3 is an elevation from the-opposite side to Fig. 2. V

0 represents the forward axle of the car, to which is rigidly secured the chain-wheel J, the broad belt-wheel V, and the mitercog-wheel R.

A little to the inside from the miter-wheel R is the loose sleeve S, forming the bearing for the rear end of the shaft N, which carries a miterwheel, Q, engaging with the wheel R near its rear end, and having the miter-wheel P secured near its front end. The front end of the shaft N is journaled in the sliding box 0, which is adapted to be operated by any suitable lever from the front platform of the car, the box sliding upon the shaft A, journaled in suitable bearings, a, near the front end of the car.

Secured to the shaft A near its right-hand end are the miter-wheels E F, which engage alternately with the wheel P by sliding the box 0 from one to the other, as will be readily understood.

Secured to the left-hand end of the shaft A is the crank-wheel O, to, which the connectingrod from the engine is attached to give motion to the shaft. The shaft-A is also provided with the large cog-wheel B, the belt-wheel O, and the small wheel D, and has secured to its extreme right-hand end the fly-wheel G.

J ournaled in the bearings e, a little to the rear of the shaft A, is the shaft H, which is provided with the small cog-wheel I, the belt means that may be preferred.

Pivoted in hangers t, which depend from the lower side of the car, a little to the rear of the belt-wheel M, is the yoke T, the rear end of which has swiveled to it the lower end of the vertical screw t, which extends up through the front platform of the car, and is provided with a suitable wheel for turning it, the front end of the yoke having journ'aled to it the bearing anti-friction roller t the said roller and the belt-wheelV on the shaft 0 being wide enough to allow the belt Z, which connects the pulleys M and V, to shift when the shaft H is shifted by the lever L. The front axle, O, is connected to the rear axle, O, of the car by means of the chain X, which passes over the sprocketwheels J, with which the axles are provided.

The operation of myinvention is as follows: Motion is imparted to the shaft A by the engine, and when it is desired to run slowly the shaft H is shifted so as to cause the small wheel D to engage with the large wheel K. The belt which connects the pulleys M and V is normally slack, so as to allow the pulleys to slip; but by means of the presser-roller t and its lowering and elevating devices, when the car is started the operator can, by working the screw, cause the belt to gradually become tight enough on the pulleys to cause the pulley Vto revolve, and thus start the car slowly and steadily, and avoid the sudden jerk which would otherwise ensue. lVhen the car is .wanted to run rapidly, the small wheel I is caused to engage with the large wheel B on the shaft A. The belt and pulleys have sufficient friction, when the roller t is depressed, to impart motion to the car on ordinary grades; but when heavy grades are to be overcome the miter-gearing has to be resorted to. Usually the miter-wheel]? is kept between the miterwheels E and F, so as to engage with neither;

but in going forward, when a heavy grade is reached, the wheel P is caused to engage with Having thus fully set forth my invention, I

the wheel E. When running backward the Wheel P must engage with the wheel F. This reversin g the motion of the car can readily be accomplished without reversing the en gine; or, if it .is preferred to reverse the engine, the mitere'd wheel F can be dispensed with.

The pulley O on the shaft A is to be used in case of accident to the pulley .M, or it may be entirely dispensed with.

In Figs. 2 and 3 I show a reservoir, T, in the top of the car, in which compressed air, steam, gas, or vapor may be stored for supplying the engine during the trip.

Placed upon the mitered pulley P is a pin, 12 and wound around the forward end of the shaft and secured to a sliding collar, W, is the spring NV. The end of the spring is bent outwardly, so that it strikes against the pin p in the revolutions of the shaft n. This spring is controlled by the lever W which presses the coils together, so that tension is secured upon the spring sufficiently to cause the shaft N to revolve and start the car.

I provide that a-leve'r may be substituted for the screw 13, if so desired, and that in practice the engine and operating'parts of the device may be placed above the platform instead of below it. I also provide that the belt Z may be twisted as a means of reversing the motion of the car.

claim-- 1. The shaft A, adapted to be rotated by any desired engine, and provided with the large wheel B and small wheel D, in combination with the shifting shaft H, having the small wheel I, the pulley M, and large wheel K, the pulley M being provided with a belt, Z, connectin g it with a pulley secured to the car-axle, whereby the motion of the car can be accelerated or slackened by shifting the shaft H, substantially as shown.

2. The shaft N, provided with the wheel P, having the pin 19 said shaft being further provided with the coiled spring W, one end of which is adapted to engage with the pin p of the wheel P and become wound around the shaft N as the car starts, the other end being attached to a suitable sliding box provided with a lever for operating it, whereby the LEWIS O. PARKER.

Witnesses:

N. F. LESLIE, S. H. WILLIAMS. 

